Objective To understand the syphilis infection status of high-risk population in Yangdu district of Yancheng city so as to provide a scientific basis for preventive and intervention measures.Methods Serum anti-TP antibody was detected by the en-zyme-linked immunosorbent assays(ELISA).Treponema pallidum particle agglutination(TPPA)assay was carried out on the posi-tive samples of anti-TP antibody,then rapid plasma regain(RPR)was conducted on the positive ones.Results The syphilis antibody positive rate of high-risk population was 14.30%,among them the positive rate of RPR in the syphilis infected persons was 58.18%;the positive rate of syphilis had statistically significant difference between genders in different crowds and different age groups(P <0.05).Conclusion The syphilis infection rate of high-risk population in Yandu district is high.The infection rates of STD clinic clients and the people subjected to reeducation were higher than those of the person accepting voluntary counseling and testing(VCT);the infection rate of 21-40 years old females is significantly higher than that of males.The high-risk population mo-nitoring should be strengthened and the publicity and education and behavior intervention should be carried out to effectively re-strain the spread of syphilis in crowds.

Objective: To study the feasibility of evaluating the adequacy of hemodialysis using neural calculating method. Methods: The adequacy of hemodialysis patients were evaluated using Daugirdas, TACurea and neural calculating method respectively, the results of the 3 method; were compared with the clinical assessment of the patients. Results: The coincidence rate among the 3 methods was 84.6%, coincidence rate between neural calculating method and the clinical outcome of the patients was 92.3%, which was significantly higher than that of Daugirdas method (76.9%) and of TACurea (80.8%). Conclusion: Neural calculating method has higher accuracy in assessing the adequacy of hemodialysis patients and is clinically practical.

Objective To investigate the clinical features,karyotype,and the prenatal diagnosis for his sibling of a Chinese patient with rare ring chromosome 20 syndrome induced intractable epilepsy.Methods The clinical data of the patient diagnosed in Peking University People's Hospital were collected.The clinical manifestations,chromosome karyotype were summarized.Results The proband,a boy,started to show intermittent tonic seizures or atypical absence seizures and psychomotor retardation from the age of 11 months.Several anti-epilepsy drugs and globulin had been tried without effect.Common karyotype analysis and epilepsy-related genes analysis revealed no abnormality.However,abnormal karyotype 46,XY,r(20)(p13q13.3) in his peripheral blood lymphocytes was found by high resolution chromosome karyotype analysis with 550 G-banding,and the diagnosis of ring chromosome 20 syndrome,type Ⅱ was confirmed.The mother of the patient underwent amniocentesis at the midterm of the second pregnancy.The cultured amniocytes karyotypes were normal.The second child(a boy) of the family was 1 year old without epilepsy and the psychomotor development was normal.Conclusions Ring chromosome 20 syndrome is a rare human chromosome abnormality.The syndrome is associated with epileptic seizures,behavior disorders and mental retardation.Since karyotype testing is not a routine investigation for the patient with epilepsy,the diagnosis of ring chromosome 20 syndrome is usually delayed or misdiagnosed.The karyotype analysis should be considered for the etiological study of the patients with intractable epilepsy with unknown origin.

Objective: To explore aspirin resistance (AR) phenomenon in patients with coronary artery disease (CAD) for secondary prevention and to study the relationships between AR and COX1, COX2, TBXA2R gene polymorphisms. Methods: A total of 2881 CAD patients taken aspirin (100 mg/day) in 7 consecutive days were enrolled. Among them, 2 groups were established as AR group, n=166 and Control group, n=200 aspirin sensitive patients. Platelet aggregation function was induced by arachidonic acid (AA), COX1, COX2 and TBXA2R gene polymorphisms were examined by polymerase chain reaction-restricted fragment length polymorphisms (PCR-RFLP) method. Results: The occurrence rate of AR was 5.76% (166/2881). There were 8 tagSNPs locus in 3 genes as in COX1:(rs3842788), (rs4273915), (rs7866582); in: COX2 (rs3218625); in TBXA2R: (rs2238630), (rs2238631), (rs2238633), (rs3786989). The frequencies of wild type, heterozygous genotype and homozygous genotype were similar between 2 groups. Conclusion: The incidence rate of AR is not high in CHD patients with regular aspirin medication; single nucleotide gene polymorphisms of COX1, COX2 and TBXA2R have no obvious correlation to AR.

Objective To explore the clinical and genetic features in the pedigree of Cb1X type X-linked methylmalonic aciduria. Methods Clinical data of one child with X-linked methylmalonic aciduria diagnosed by blood and urine analysis were analyzed retrospectively. Targeted next-generation sequencing has been performed to detect the mutation of methylmalonic aciduria-related genes. Results The boy started presenting with seizures and severe mental retardation at 2 months of age. At 5 months of age, he had the manifestations of seizures, severe mental retardation, increased methylmalonic acid in urinary, increased propionylcarnitine in blood and increased plasma homocysteine, and met the requirements for the diagnosis of methylmalonic aciduria complicated with hyperhomocysteinemia. No mutation was detected in his MMA-related autosomal genes. However, a hemizygote mutation c.344C?>?T (p.Ala115Val) was identiifed in exon 3 of HCFC1 in X chromosome, which conifrmed the CblX type methylmalonic aciduria. His parents were healthy. His elder brother also manifested severe psychomotor retardation with intractable epilepsy, and died at 6 months of age with unknown cause. His mother carried the same mutation and had slightly elevated urine methylmalonic acid and plasma total homocysteine. His father did not carry the mutation. Conclusion A pedigree of a rare Cb1X type X-linked methylmalonic acidemia is ifrstly diagnosed in China by the new generation sequencing technology.

Objective To investigate the clinical, biochemical and genetic features of a Chinese boy with early-onset glo-boid cell leukodystrophy (GLD). Methods The clinical and genetic data of a rare case of early-onset GLD were retrospectively analysed. Results At 2 months after birth, the boy showed progressive psychomotor regression. At 4 months of age when the boy was taken to a doctor, the pyramidal sign was positive. The cranial MRI showed that the body of the lateral cerebral ventri-cles was slightly enlarged and the brain ditch crack of frontal-temporal-parietal lobe was widened and deepened. On his brain CT scan, high signals in bilateral basal ganglia, thalami, cerebellar hemisphere were observed.β-galactosylceramidase (GALC) ac-tivity in the peripheral leucocytes was signiifcantly decreased (3.9 nmol/g protein.h). On his GALC gene, one homozygous novel mutation c.868C>T on exon 8 was found, which resulted in the amino acid change on p.R290C proteins. Conclutions Early-on-set GLD is a rare autosomal-recessive hereditary lysosomal storage disease with a terrible prognosis, in which beta-galactose glu-coside enzyme deifciency is induced by GALC gene mutation. The diagnosis of early-onset GLD is dififcult and should depend on enzyme assay and gene testing.

To determine the content of dendrobine in Dendrobium nobile from different harvest times and plant parts, to research the inherent rule about it. GC with internal standard was used to determine. The content of dendrobine had significant differences in different periods and parts. The dendrobine content is higher in four-year root than in three-year root. The dendrobine content in the upper segment of stem is the highest, secondly is in the middle seg-ment, and in the low segment is the lowest. This offered evidence to determine the most appropriate harvest time and fair use of different parts for D.nobil.

Objective To observe clinical application value of percutaneous interventional techniques for the treatment of complications of AIDS.Methods Twenty-one AIDS patients with complications were enrolled.CT guided percutaneous needle biopsy and drainage were conducted,and the correct rate of diagnosis,clinical curative effect and complications post-interventional therapy were observed.Results The operations of all patients executed successfully.Fourteen patients underwent 16 times biopsy,11 were correctly diagnosed,the diagnostic accordance rate was 81.25%.Drainage was performed in 6 patients with abscess or cystis,then the lesions completely disappeared in 3,deflated in 2,while the rest one needed continously draining.Partial splenic embolization (50%) was performed in 1 patient,and after operation platelet content increased,while hepatic function decreased temporality.No complicated infection and other severe complications occurred.Conclusion Percutaneous interventional techniques for the treatment of complications of AIDS are safe and feasible.Medical staffs should be careful to exposition of HIV infection.

Objective: To analyze the therapeutic effect of repeated hepatectomy on recurrent hepatocellu-lar carcinoma and prognostic factors. Methods: We retrospectively analyzed the clinicopathologic data of 48 patients who underwent repeated hepatectomy for recurrent hepatocellular carcinoma between July 1995 and July 2003. Overall survival rate and disease-free survival (DFS) rate were calculated by Kaplan-Meier meth-od. Prognostic factors were analyzed by univariate and multivariate analysis. Results: The median survival of 48 patients was 36.4 months. The overall 1-, 3-, and 5-year survival rates were 81.3%, 45.8%, and 27.1%, re-spectively. The disease-free 1-, 3-, and 5-year survival rates were 70.8%, 25.0%, and 16.7%, respectively. Univariate analysis showed that TNM stage of primary tumor, TNM stage of the recurrent tumor, vascular in-vasion, recurrent tumor size (>5cm) and recurrence-free interval were prognostic risk factors for overall surviv-al. While TNM stage of primary tumor, recurrent tumor size (>5cm), TNM stage of recurrent tumor, vascular in-vasion, pathological grading of recurrent tumor, preoperative AFP and recurrence-free interval were prognos-tic risk factors for DFS. Multivariate analysis showed that recurrence-free interval and TNM stage of recurrent tumor were independent prognostic risk factors for overall survival. While recurrence-frae interval and recur-rent tumor size (>5cm) were independent prognostic risk factors for DFS. Conclusion: Short recurrence-free in-terval (≤24 months), recurrent tumor size (>5cm) and TNM stage of recurrent tumor indicate poor prognosis of patients who received repeated hepatectomy for recurrent hepatocellular carcinoma.

Objective: To explore the impact of body mass index (BMI) on long-term prognosis in patients of acute ST-segment elevation myocardial infarction (STEMI) after percutaneous coronary intervention (PCI). Methods: A total of 1435 consecutive STEMI patients received PCI in our hospital from 2013-01 to 2013-12 were enrolled. Based BMI (kg/m2), the patients were divided into 3 groups: Normal weight group, the patients with 18.5≤BMI<24.0, n=365, Overweight group, 24.0≤BMI<28.0, n=718 and Obese group, BMI≥28.0, n=352. The impact of BMI on major adverse cardiovascular and cerebral events (MACCE) was observed; weather BMI had predictive value for all-cause mortality and cardiac death was analyzed. Results: All-cause mortality in Obese group was lower than Normal weight group (0.6% vs 3.0%), P=0.027; while the incidences of bleeding, stroke, in-stent thrombosis, blood revascularization, re-myocardial infarction and cardiac death were similar among 3 groups. Multivariate analysis revealed that obesity was an independent predictor for all-cause death (HR=0.201, 95% CI 0.043-0.943, P=0.042), BMI was not the independent predictor for cardiac death. Conclusion: For STEMI patients after PCI treatment, the individuals with obesity had the better prognosis than those with normal weight and overweight. Obesity was an independent predictor for all-cause death and obesity paradox was applicable in such population.